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<head><meta charset="utf-8"><title>build times back to 4h · t-infra · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/index.html">t-infra</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html">build times back to 4h</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/221326808" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Manish Goregaokar <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#221326808">(Jan 01 2021 at 00:29)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/pull/80310">https://github.com/rust-lang/rust/pull/80310</a> -- should this build be taking this long? If not it's possible that the changes are introducing a compile time issue (maybe due to commit 5 and 6)</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/221326810" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Manish Goregaokar <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#221326810">(Jan 01 2021 at 00:29)</a>:</h4>
<p>it's just apple-alt</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/221328599" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Alex Gaynor <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#221328599">(Jan 01 2021 at 01:17)</a>:</h4>
<p>I think I saw an issue that mentioned a recent rustc build time regression, in the last two weeks or so.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/221328639" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Alex Gaynor <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#221328639">(Jan 01 2021 at 01:18)</a>:</h4>
<p>It wasn't to 4 hours though, it was to like 3 I think.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/221328645" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Alex Gaynor <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#221328645">(Jan 01 2021 at 01:18)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/80245">https://github.com/rust-lang/rust/issues/80245</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/221328655" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Eric Huss <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#221328655">(Jan 01 2021 at 01:19)</a>:</h4>
<p>I think when a job runs really slow like that, it is almost always a noisy-neighbor situation (or other infrastructure problem), which we have no control over.  The macos machines seem particularly vulnerable.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/221347475" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Pietro Albini <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#221347475">(Jan 01 2021 at 11:12)</a>:</h4>
<p>yeah it's probably noisy neighbors</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/222230100" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Aaron Hill <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#222230100">(Jan 10 2021 at 16:44)</a>:</h4>
<p>Another case of this: <a href="https://github.com/rust-lang-ci/rust/runs/1676803066">https://github.com/rust-lang-ci/rust/runs/1676803066</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/225054684" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Noah Lev <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#225054684">(Feb 03 2021 at 18:00)</a>:</h4>
<p>Not as bad, but so far up to 2h 47m on aarch64-apple: <a href="https://github.com/rust-lang-ci/rust/runs/1823506146">https://github.com/rust-lang-ci/rust/runs/1823506146</a></p>
<p>Probably not much we can do though <span aria-label="shrug" class="emoji emoji-1f937" role="img" title="shrug">:shrug:</span></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/242791-t-infra/topic/build%20times%20back%20to%204h/near/225054759" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Noah Lev <a href="https://rust-lang.github.io/zulip_archive/stream/242791-t-infra/topic/build.20times.20back.20to.204h.html#225054759">(Feb 03 2021 at 18:01)</a>:</h4>
<p>What timing, it just finished <span aria-label="rolling on the floor laughing" class="emoji emoji-1f923" role="img" title="rolling on the floor laughing">:rolling_on_the_floor_laughing:</span></p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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